Axletree-anchoring device for mobile gun-mounts.



H. RABBA.

AXLETREE ANCHORING DEVICE FOR MOBILE GUN MOUNTS.

APPLICATION FILED MAR 31. 19M.

1 ',1 62, 1 01 Patented Nov. 30, 1915.

TED STATEB PATENT @FFTCE.

HEINRICH RABBA, 0F

BORBECK, NEAR ESSEN-ON-TI-IE-RUHR, GERMANY, ASSIGNOR AXLETREE-ANCHORING DEVICE FOR MOBILE GUN-MOUNTS.

Specification of Letters Patent.

Patented NOV. 30, 1915.

Application filed. March 31, 1914. v Serial No. 828,619.

To all whom it may concern:

Be it known that I, HEINRICH RABBA, residing at Borbeck, near Essen-onthe-Ruhr, Germany, a subject of the Emperor of Germany, have invented a certain new and useful Improvement in AXletree-Anchoring Devices for Mobile Gun-Mounts, of which the following is a specification.

This invention relates to an aXle tree anchoring device for mobile gun mounts and resides in an arrangement which prevents that the anchoring device will loosen under the action of the shocks appearing during the counter recoil.

One embodiment of the invention is illustrated in the drawing, and Figure l is a side view partly in section of a gun mount with the anchoring device; Fig. 2 a part top plan view of Fig. l and Fig. 3 a cross section along the line 33 of Fig. l in larger scale.

The anchoring device consists of an axle tree spur A which is provided with an upwardly directed trunnion a over which a sleeve 6 of an arm B is mounted. A U- shaped bearing D is secured on the trail body C and against the surface (Z of this bearing, facing toward the muzzle of the gun barrel the arm B may abut. The free ends of the shank of the bearing D are shaped as eyelets (Z The bores of these eyelets are intended to receive a key bolt E againstwhich the arm 13 abuts with its surface Z2 facing toward the muzzle of the gun barrel.

A fork shaped bar F, see Fig. 3, has hinged connection with the trail body C, at 0 which fork is suspended from the trail body by means of a chain G or the like, see Fig. 1. The prongs of this bar are connected with each other by means of a rung f with which the bar F may rest against the sleeve 6 of the arm B. In front of the rung f the bar F is provided with arms f which are adapted to receive between them with a certain amount of play the sleeve of the arm B. The arms 7 have bearings for a key bolt H which is provided with a handle H and two keys h" 72?, see Fig. 3. The key h together with the nave of the handle H is intended to secure the bolt H against displacement in the arms 7, while the key it is able to rest against the sleeve b Key-ways f and 7 are provided in the arms f for the keys k 72 see Fig. 3, so that the bolt H in a certain position may be inserted into and removed from the arms F. A latch i having a groove is provided on one of the arms 7' and is intended to lock the handle H of the bolt H when the handle is sprung into the position shown in the drawmg.

When the gun is to be fired, the spur A is driven into the ground and the arm B with its sleeve 6 pushed over the spur trunnion a Thereupon the gun mount, after the bolt E has been removed from the eyelets d and the bolt H from the arms 7, is run forward to the arm B until the surface d of the bearing D abuts against the arm B and the rung f of the bar F against the sleeve 6 Further the bolt H is inserted into the arms 7, turned into the working position shown in the drawing and secured in this position by means of the handle H and the latch 7. Lastly the bolt E is pushed through the eyelets (Z of the bearing D. Should the spur trunnion a and with it the arm B engaged therewith be inclined forward relative to the gun mount before the running up of the gun mount, the mount is preferably only run so far toward the arm B, that a certain play occurs between the rung f of the bar F and the arm B. In turning over the bolt H into the working position, the arm B will thereupon receive the vertical direction by means of the key 72, The arm B will then lie in abutment with the rung f and the abutment surface d of the bearing D; and the arm B will then permit the insertion of the bolt E in the eyelets (Z The recoil shock appearing in the firing of the gun will be transmitted through the intermediary of the bar F, the bolt H and the arm B of the spur. Any tilting of the spur in the ground can therefore not appear because in such a tilting the arm B must participate, but this arm is prevented from any rearward tilting movement on account of its abutment against the surface (Z of the bearing D. If, during the running out of the gun barrel, a shock appears, this shock will be transmitted to the spur A through the intermediary of the rung f of the bar F and of the arm B. The abutment of the arm B against the bolt E prevents any tilting of the spur in the ground. The spur does therefore not loosen under the influence of the recoil shock nor under the influence of shocks which appear during the counter recoil.

This invention applies equally well to axle tree bed-plates.

I claim 1. In. a wheeled gun carriage an anchor ing member comprising a downwardly reacting portion for gripping the ground and an upwardly reacting portion, an abutment on the carriage against which said upwardly reacting portion may bear or rest freely against that side Which is nearest the muzzle of the gun barrel, a rigid connecting member-between said upwardly reacting portion and the carriage, said connecting member having detachable means for holding it in engagement with said upwardly reacting portion. I

2. In a wheeled gun carriage an anchoring member comprising a downwardly reacting portion for gripping the ground and an upwardly reacting portion, an abutment on the carriage against which said upwardly reacting portion may bear with that side which is nearest the muzzle of the gun barrel, a. rigid connecting member between said upwardly reacting portion and the carriage, said connecting member having a fork shaped portion adapted to embrace Said up: wardly reacting portion, a locking bolt mounted on the arms of said fork shaped portion, said bolt and said fork shaped portion securing the upwardly reacting portion 1n the position for cooperating with said abutment.

3. In a wheeled gun carriage an anchoring member comprising a downwardly reacting portion for gripping the ground and an upwardly reacting portion,.an abutment on the carriage against which said upwardly reacting portion may bear with that side which is nearest the muzzle of the gun barrel, a rigid connecting member between said upwardly reacting portion and the carriage, said connecting member having a fork shaped portion adapted to embrace said upwardly reacting portion, a locking bolt mounted on the arms of said fork shaped portion, an extension on said bolt adapted to bear against said upwardly reacting portion when the bolt is turned into the operative position, said extension and said fork shaped portion securing the upwardly reacting portion in the position for cooperating with said abutment.

The foregoing specification signed at Barmen, Germany, this 10th day of March,

HEINRICH RABBA. [1,. s.'] In presence of- HELEN NUFER, ALBERT N UFER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

